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Series circuits

In a series circuit, the flow of charge only has one path to follow.

An example of a series circuit
An example of a series circuit
  • The current $$I$$ in a series circuit is equal at every point in the circuit ($$I=I_{1}=I_{2}=I_{3}=...$$).

    In a single water pipe, the amount of water passing though the pipe is the same at every point.

  • The total potential difference $$V$$ across all of the components is the sum of the potential difference across each individual component (i.e. $$V=V_{1}+V_{2}+V_{3}+...$$).

  • The total (effective) resistance $$R$$ is the sum of the resistances of each individual component (i.e. $$R=R_{1}+R_{2}+R_{3}+...$$).